import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * user:likai
 * Date:2023-01-02
 * Time:16:07
 */
@WebServlet("/logout")
public class LogoutServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        HttpSession session=req.getSession(false);
        if(session==null){
            resp.setStatus(403);
            return;
        }
        //直接删除其中的user对象
        session.removeAttribute("user");
        resp.sendRedirect("login.html");

    }
}
